Patents by Inventor Yasuhiro Koujina

Yasuhiro Koujina has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9110466
    Abstract: An operator inputs a sensing instruction at a sensing point, which is a rough taught point, in a teaching mode (S22). The instruction and sensing point are stored in a second storage region (S23). Further, a target angle and an advance/retraction angle are both input in the second storage region (S24). A CPU moves a robot to the sensing point (S33) in a sensing mode, to perform detection tasks by a laser sensor, thereby acquiring the shape of a workpiece (S33). The CPU calculates a position and a posture of a welding torch to create a task program (S35). In such a manner, it is possible to greatly simplify teaching tasks in an environment free of workpiece displacements.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: August 18, 2015
    Assignee: Daihen Corporation
    Inventors: Kouzou Yanagawa, Yasuhiro Koujina
  • Patent number: 8660690
    Abstract: A robot control system has a portable operating device TP and a robot control device RC. The portable operating device TP is actuated by a rechargeable secondary battery and used to operate a robot R. The robot control device RC is capable of wireless communication with the portable operating device TP and performs automatic operation of the robot R based on teaching data provided by the portable operating device TP. The robot control system causes an emergency stop of the robot R when the wireless communication between the portable operating device TP and the robot control device RC is interrupted. The robot control system further includes a charging device CU, a connection monitoring section 12, and an automatic operation continuing section 11. The charging device CU charges the secondary battery by electrically connecting the portable operating device TP to the robot control device RC.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: February 25, 2014
    Assignees: Daihen Corporation, Nachi-Fujikoshi Corp.
    Inventors: Nobuhiro Tani, Yasuhiro Koujina, Yuji Nakatsugawa
  • Publication number: 20110238215
    Abstract: An operator inputs a sensing instruction at a sensing point, which is a rough taught point, in a teaching mode (S22). The instruction and sensing point are stored in a second storage region (S23). Further, a target angle and an advance/retraction angle are both input in the second storage region (S24). A CPU moves a robot to the sensing point (S33) in a sensing mode, to perform detection tasks by a laser sensor, thereby acquiring the shape of a workpiece (S33). The CPU calculates a position and a posture of a welding torch to create a task program (S35). In such a manner, it is possible to greatly simplify teaching tasks in an environment free of workpiece displacements.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 29, 2011
    Applicant: DAIHEN CORPORATION
    Inventors: Kouzou YANAGAWA, Yasuhiro KOUJINA
  • Publication number: 20110010006
    Abstract: A robot control system has a portable operating device TP and a robot control device RC. The portable operating device TP is actuated by a rechargeable secondary battery and used to operate a robot R. The robot control device RC is capable of wireless communication with the portable operating device TP and performs automatic operation of the robot R based on teaching data provided by the portable operating device TP. The robot control system causes an emergency stop of the robot R when the wireless communication between the portable operating device TP and the robot control device RC is interrupted. The robot control system further includes a charging device CU, a connection monitoring section 12, and an automatic operation continuing section 11. The charging device CU charges the secondary battery by electrically connecting the portable operating device TP to the robot control device RC.
    Type: Application
    Filed: March 17, 2009
    Publication date: January 13, 2011
    Applicants: Daihen Corporation, NACHI-FUJIKOSHI CORP.
    Inventors: Nobuhiro Tani, Yasuhiro Koujina, Yuji Nakatsugawa